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In Java Stream API, methods are divided into intermediate and terminal.

• Intermediate methods return a new stream and allow chaining operations. They are lazy, meaning they do not execute immediately, but only when a terminal method is called. Examples: filter(), map(), sorted(), distinct().

• Terminal methods initiate stream processing and return a result (not a stream). After their invocation, the chain ends. Examples: collect(), forEach(), reduce(), count().

Example:

List<String> names = List.of("Anna", "Bob", "Charlie", "David");

long count = names.stream()  // intermediate method stream()
    .filter(name -> name.length() > 3)  // intermediate method filter()
    .count();  // terminal method count()

System.out.println(count);  // Prints the number of names longer than 3 characters